3 research outputs found

    Narcissistic self-sorting of n-acene nano-ribbons yielding energy-transfer and electroluminescence at p-n junctions

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    The 2,3-didecyloxy derivative of an n-type anthracene (n-BG) and a p-type tetracene (p-R) have been synthesized and their self-assembly into nano-ribbons studied. Hyperspectral fluorescence imaging revealed their narcissistic self-sorting, leading to separated nanoribbons emitting with very different colors (blue or green for n-BG, depending on the growth solvent, and red for p-R). It is unique that the usual origins of self-sorting, such as specific H-bonding, different growth kinetics, or incompatible steric hindrance can be ruled out. Hence, the narcissistic behaviour is herein proposed to originate from a sofar unconsidered cause: the discrepancy between the quadrupolar character of n-BG and dipolar character of p-R. At the p-n junctions of these nanoribbons, inter-ribbon FRET and electro-luminescence switch-on were observed by fluorescence/luminescence microscopy.The authors acknowledge the financial support of the European Research Council Marie Curie Actions (FP7-PEOPLE-2012-ITN SMARTNET Grant agreement Nr 316656); the CNRS; the French Ministry of Education and Research; the Region Aquitaine; the ANR-06-JCJC-0030; the Department of Education, Science and Universities of the Basque Country Government (postdoctoral grant and project IT1639-22); the "Arina" informatic cluster of UPV/EHU; the facilities ELORGA of UB; and the ANR-17-CE24-0033-01 RESOLVE. The authors thank Dr A. Mendez-Ardoy for the CV measurements and CESAMO for structural analyses (ISM, Univ. Bordeaux)

    Actuator of liquid crystals dispersed in elastomer

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    La presente invenci贸n se refiere a un material que comprende un cristal l铆quido tipo termotr贸pico dispersado en forma de gotas en una matriz elastom茅rica y sus procedimientos de obtenci贸n. Adem谩s, la presente invenci贸n se refiere a un actuador de elast贸mero diel茅ctrico que comprende el material y a sus usos para la fabricaci贸n de dispositivos rob贸ticos, electr贸nicos, industriales y componentes biom茅dicos. Asimismo, la presente invenci贸n se refiere a un generador de elast贸mero diel茅ctrico que comprende el material y a sus usos para la fabricaci贸n de generadores de energ铆a olamotroz o undimotriz. Por tanto, la invenci贸n se podr铆a encuadrar en los sectores de la rob贸tica, la electr贸nica, la industria y la biomedicina.Peer reviewedConsejo Superior de Investigaciones Cient铆ficas (Espa帽a)A1 Solicitud de patente con informe sobre el estado de la t茅cnic

    Actuador de cristal l铆quido dispersado en elast贸mero

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    [EN] The present invention relates to a material including a thermotropic liquid crystal dispersed in drop form in an elastomeric matrix and methods for obtaining same. The invention also relates to a dielectric elastomer actuator including said material and to the uses thereof for manufacturing robotic, electronic, and industrial devices as well as biomedical components. The present invention further relates to a dielectric elastomer generator including said material and the uses thereof for manufacturing wave-motion or wave-energy generators. The invention could therefore be useful in the robotics, electronics, industrial, and biomedical industries.[ES] Actuador de cristal l铆quido dispersado en elast贸mero. La presente invenci贸n se refiere a un material que comprende un cristal l铆quido tipo termotr贸pico dispersado en forma de gotas en una matriz elastom茅rica y sus procedimientos de obtenci贸n. Adem谩s, la presente invenci贸n se refiere a un actuador de elast贸mero diel茅ctrico que comprende el material y a sus usos para la fabricaci贸n de dispositivos rob贸ticos, electr贸nicos, industriales y componentes biom茅dicos. Asimismo, la presente invenci贸n se refiere a un generador de elast贸mero diel茅ctrico que comprende el material y a sus usos para la fabricaci贸n de generadores de energ铆a olamotroz o undimotriz. Por tanto, la invenci贸n se podr铆a encuadrar en los sectores de la rob贸tica, la electr贸nica, la industria y la biomedicina.Peer reviewedConsejo Superior de Investigaciones Cient铆ficas (Espa帽a)A1 Solicitud de patente con informe sobre el estado de la t茅cnic
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